package C.e.string;
import java.util.Locale;
public class ToUpperCaseDemo {
    public static void main(String[] args) {
        String q="f♂Q";
        String upper=q.toUpperCase();
        System.out.println(upper);
        String lower=q.toLowerCase();
        System.out.println(lower);















        /*String srt="我爱Java！";
        String upper=srt.toLowerCase();
        System.out.println(upper);
        String lower=srt.toLowerCase();
        System.out.println(lower);
*/
    }
}
